Existence of nirvana
From my understanding of your description of Nirvana, I think you are coming from a very Westernised take on it, which is not based on the belief in Nirvana as it is within the historical context of Hinduism. I don't in any way consider myself as any expert on Hinduism but from my r discussion with some frienda from this tradition, Nirvana is not necessarily about 'enlightenment, or inner peace' but is the release from the wheel of rebirth. It is seen as the the ultimate release after many earthly incarnations, even though there is some dispute whether it is absolute, or will be followed by some future birth.
What you are describing as a state of bliss as opposed to the state of mind of a suicidal person seems more like the contrast between heaven and hell, which within Christianity can be in this life rather than just as an afterlife.
I hope that you don't think that I am being nitpicking. It is simply that I do believe that it is important to discuss ideas with some understanding of the context from which they come. Of course, no worldview exists in isolation from others, as there is convergence. In particular, I know that some Hindus believe in heaven and hell, as a state in between death in this life and future incarnations. But, of course, there are many different forms of traditions within Hinduism and later Eastern traditions, but I just believe that your presentation of the idea of Nirvana is based on the misinterpreted idea of the concept which developed within psychedelic writings, and the name of the group Nirvana (there was also a 60s band called Nirvana as well as that of Kurt Cobain).
Edit: I will say that the the Hindu perspective which I was thinking of when writing my response to you was Theravada tradition from which Buddhism emerged, so it is possible that you are drawing upon a tradition which I am not acquainted with, so if you are I apologise. However, I do think that it would be be more useful if you were able to contextualize your understanding of Nirvana.